Extension table



A. H. @TN

EXTENSION TABLE Filed July 5, -1925 2 Sheng- Sheet l Feb. 9,1926.Y I

, vv A.H.sToNE EXTENSION TABLE' FiledJuly 5. 1923 2 sheets-sheet zPatented Feb. 9, 1926.

UNITED STATES PATENT OFFICE.v

AND'EEW H. SToNE, or KANSAS CITY, MISSOURI.

EXTENSION TABLE.

AppIication led July 5,

To all 107mm t may concern Be it known that I, ANDREW H. STONE, acitizen of the United States, residing at Kansas City, in the county ofJackson and State of Missouri, have invented certain new and usefulImprovements in Extension Tables, of which the following is aspecification.

My invention relates to improvements in extension tables which may beused to advantage in libraries, parlors, dining rooms, or wherever it isdesirable to have al table that can be adjusted to compact form or eX-tended to give additional capacity when needed.

The table embodies one or more foldable leaves consisting of sectionswhich` are hinged together, so that when not in use they may be foldedand VSupported underneath the top of the table, saidleaves being at alltimes attached to the table to prevent their loss and also to provide atable so constructed that it may be easily and quickly operated. Y

The invention further provides a plurality of slidable leaves whichmay-be extended to permit the foldable leaves to be adjusted to activeposition, or contracted after the foldable leaves have been adjusted toinactive position.

An important feature resides in novel frictional locking mechanismwhereby the slidable leaves may be reliably secured in their differentpositions. 'l

Another feature resides in means for adj usting the leaves vertically tobring them on a level, so that the top surface of the table will be ofuniform height throughout.

Other features will hereinafter appear, and in order that the inventionmay be fully understood, lreference will now be had to the accompanyingdrawings, in which:

Fig. 1 is an inverted plan view of the table in extended position.

Fig. 2 is a longitudinal sectional view of the table on line II-II ofFig. 1.

Fig. 3 is a cross section of the table on line III-III of Fig. 1.

Fig. 4 is an enlarged fragmentary cross section on line IV-IV of Fig. 1.

\ Fig. 5 is an enlarged fragmentary cross section on line V-V of Fig. 1.

Fig. 6 is an'enlarged fragmentary cross section on line VI-VI of Fig.1.V f

Fig. 7 is a broken plan view of a modified form of table. i

1923. Serial No. 649,446.

Fig. 8 is a fragmentary section on line VIII*VIII of Fig. 7.

In carrying out the invention, I employ a dependingrim 2 and a vframeconsisting of longitudinal members 4 and 5 and transverse members 6. Thelongitudinal members 4 are 'removably Secured to the rim 2 by suitablemeans such as screws 7 while the transverse members 6 are secured to thelongitudinal members 4 and 5 by suitable means such as screws 8. `Thetwo endmosttransverse members 6 are provided at their undersides withlegs 9. The frame above described and its attachments hereinafterreferred to can be fitted into any table with a rim 2 when it is desiredto convert such table into an eXtension table.

j 10 designates a pair of slidable leaves which constitute the table topwhen reduced to its most compact form. Said slidable leaves 10 areprovided vat their undersides with guides 12, which run in longitudinalgrooves 14 in the frame members 5.

16 designates pairs of foldable leaves adapted to be disposed betweenthe slidable leaves 10 when the table top is extended as disclosed byFigs. 1 and 2, or folded beneath said slidable leaves 10 as shown bydotted lines Fig. 3, when the table top is contracted. The two sectionsof each foldable leaf 16 are operably connected by hinges 18 and onesection of each leaf is provided with a bearing 2O which is swiveledupona rod- 22. l

The rod 22 is mounted at its ends in plates 24 having slots 26 dtoreceive screws 28, whereby said plates 24 are adjustably 'secured to thetwo endmost transverse members 6, so that the foldable leaves 16 may beadjusted vertically to bring them onl a level, when extended, with theslidable leaves 10. The rod' 22 is mounted at intermediate pointsinplates 23, having Slots 25, to receive screws 27, whereby said plates23 are adjustably secured to'blocks 29, so that they Y may be adjustedvertically with the plates 24. The blocks 29 are fixed to the transverseframe members 6.

Vhen folded the free ends of the lower most sections of the leaves 16rest upon inclined guides 30, which guide said lowermost sectionsupwardly over the adjacent longitudinal member 5 when the free ends ofthe l uppermost- Sections areswung upwardly by 'motion is substantiallyeliminated'.

Fig. 3... The guides 30 are fixed to a bar 32 secured 4to the undersidesof thetwo intermediate transverse frame membersy 6.

Each slidable leaf 10 isv provided with a iixedly-inounted stop 34. Thestops 34limitA the outward movement of the leaves l0` by contacting' thetwo endinost transverse meinbers 6, and also coact with dowels :36 insupporting the leaves 16, when extended so that they cannot sag at theirhinged jjoints 38. i i

Each slid-able leaf l() is provided at --its underside with a fixed rail40, spaced slightly below the leaf by an intervening' lillerstrip 4l.The upper surfaeefof the rails 40 are engaged by the inturned upper ends42 of members 44 loosely connected to the'two endinost transverse framemembers 6 by suitable means such as screws 48 passing through theslotted portions 50 of said members 44. Each member 44 'has a-n inclineds-urface 52 spaced beneath the adjacent rail 40 and slidably engaged bythe transverse portion 54 at one end of a lockingl element 56. providedat its opposite end with a handle 58 and mounted'in a guide 6()secnredto the underside of the adjacent transverse frame meniber 6.

The handles, 58 extend to .within lconvei'iient reach at :one side ofthe table and when pulled outwardly in the directionof the arrow, Fig.4, the transveix'se portions 54 of the locking elements 56 travel up theinclines 52 and frictionally engagethe undersides of the rails 40l tohold the leaves -lO-at any point of their inward or outward movement.

' In order to prevent the slidable leaves. 10

Vfrom fitting too loosely or too tightly upon the frame 2, l provideadjusting mechanism consisting of members` 62 andbolts 64 which latterlare connected to the former by heads 66 and nuts 68.. i

The members 62 have inturned ends 7 0V overlapping the upper surface ofthe rails 40, so that when the nuts 72 on the bolts 64 are tightened todraw the members 62 downwardly, they in turn will pull the leaves 10downwardly upon the frame 2 until all lost Should the leaves l0 fit tootight-ly on the frame 2 the nuts 72 are loosened and the bolts 64 arepushed; upwardly to loosen the grip of the members 62 upon the rails 40;The bolts 64 extend through blocks 74 iixed tothe inner surface of theends `of the rim 2 and provided with recesses 76 infwhieh the inembers62 operate.

The longitudinal members 5 are provided `attheir ends with recesses 7Scommunicat- V o ing withtlie upper sides of theA grooves 14 and` throughwhich the guides l2 ina-y pass should it'be desirable to remove theleaves l0 from the frame 2' forany cause. Preparatory to removing theleaves 10, the stops the recesses 78. The nuts 72 are then removed fromthe bolts 64, so that the same and their attachments may be lifted oil'with `the leaves l0.

y The operation brieiiy stated is as follows: lVhen the .table is inextended position as disclosed by Fig. l, the leaves l0 are iirinlylocked against tlievadjacent foldableleaves 16 by pulling the lockingmembers 56 outwardlyin the directionof the arrow, F ig. 4. lVhen it isdesired to contract the top of the table to its most compact form all ofthe leaves 16 are folded to the position disclosed by dotted lines, Fig.3, and the -leaves 16 are slidtoward --each other until they abut andthe slides l2 abut stops 80 secured to the central portions of thelongitudinal frame members V5 to center the leaves l0 upon the frame;rI`he locking members 56 which were previously slid inward-ly to releasethe leaves 10 preparatory to sliding the same toward each other, arethen tightened as before stated to again lock said leaves l0 in theircontracted position'.

Of 'course when desiredonly one 0r two Vof the foldable lleaves may beopened .to aetive position instead of all three as disclosed by Fig. l.f ,Y

'In the inodiiied form disclosed by Figs. 7 and 8, the slidable leaves10a are provided their undersides with keepers 44a havingdepending'portions 45- which are brought together when the leaves 10illare moved invard'ly towards each other` asl disclosed by The leaves 10aare then secured by the V- shaped terniin-al 54fL which engage thedownturned' ends 45 of the keepers 44a. The V- -shaped terminal54a isonf a lock memberI 56 provided with a handle 58, and slidably mounted inguides 60a and a slotted plate Having thus described rmy invention, whatI claim andl desire to secure by Letters Patent, is:

l. liia table ofthe character described, a frame, -a leaf slidably.,mounted on said frame, a rail fixed to said leaf, a member mounted onthe fra-ine lia-ving an inclined surface and overlapping said rail", andmea-ns guided-by said inclined surface into frictional engagement withthe railr to secure the leaf aty any pointof its movement.

2. In a table of the character described, a frame, leaves sl'idablymounted on said frame, rails fixed to said' leaves, members mounted onthe frame having. inclined surfaces and overlapping. said rails,foldable leaves arranged to fold beneath the slidable leaves whenthe-'same are slidr together, or be extended between said slidablelleaveswhen the saine are slid apart, and locking, elements projectingbetween the rails and said inclined surfaces to travel on the same anddraw the overlapping portions iirmly into engagement with said rails andlock the same and the slidable leaves at any pointo their movement.

3. ln a table of the character described, a frame, a leaf adjustablymounted on said frame, a. rail fixed to said leaf, a member looselyconnected to said frame and having intuined ends overlapping the railand an inclined surface underlying said rail, and a locking memberslidable on said inclined surface to cause the inturned ends tofrictionally engage the rail and thereby lock the leaf at any point ofits adjustment.

In testimony Wheeof I alix my signature.

ANDREW I-l. STONE.

